// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/test/user_action_tester.h"

#include "base/metrics/user_metrics.h"
#include "base/metrics/user_metrics_action.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace base {

namespace {

    const char kUserAction1[] = "user.action.1";
    const char kUserAction2[] = "user.action.2";
    const char kUserAction3[] = "user.action.3";

    // Record an action and cause all ActionCallback observers to be notified.
    void RecordAction(const char user_action[])
    {
        base::RecordAction(base::UserMetricsAction(user_action));
    }

} // namespace

// Verify user action counts are zero initially.
TEST(UserActionTesterTest, GetActionCountWhenNoActionsHaveBeenRecorded)
{
    UserActionTester user_action_tester;
    EXPECT_EQ(0, user_action_tester.GetActionCount(kUserAction1));
}

// Verify user action counts are tracked properly.
TEST(UserActionTesterTest, GetActionCountWhenActionsHaveBeenRecorded)
{
    UserActionTester user_action_tester;

    RecordAction(kUserAction1);
    RecordAction(kUserAction2);
    RecordAction(kUserAction2);

    EXPECT_EQ(1, user_action_tester.GetActionCount(kUserAction1));
    EXPECT_EQ(2, user_action_tester.GetActionCount(kUserAction2));
    EXPECT_EQ(0, user_action_tester.GetActionCount(kUserAction3));
}

// Verify no seg faults occur when resetting action counts when none have been
// recorded.
TEST(UserActionTesterTest, ResetCountsWhenNoActionsHaveBeenRecorded)
{
    UserActionTester user_action_tester;
    user_action_tester.ResetCounts();
}

// Verify user action counts are set to zero on a ResetCounts.
TEST(UserActionTesterTest, ResetCountsWhenActionsHaveBeenRecorded)
{
    UserActionTester user_action_tester;

    RecordAction(kUserAction1);
    RecordAction(kUserAction1);
    RecordAction(kUserAction2);
    user_action_tester.ResetCounts();

    EXPECT_EQ(0, user_action_tester.GetActionCount(kUserAction1));
    EXPECT_EQ(0, user_action_tester.GetActionCount(kUserAction2));
    EXPECT_EQ(0, user_action_tester.GetActionCount(kUserAction3));
}

// Verify the UserActionsTester is notified when base::RecordAction is called.
TEST(UserActionTesterTest, VerifyUserActionTesterListensForUserActions)
{
    UserActionTester user_action_tester;

    base::RecordAction(base::UserMetricsAction(kUserAction1));

    EXPECT_EQ(1, user_action_tester.GetActionCount(kUserAction1));
}

// Verify the UserActionsTester is notified when base::RecordComputedAction is
// called.
TEST(UserActionTesterTest,
    VerifyUserActionTesterListensForComputedUserActions)
{
    UserActionTester user_action_tester;

    base::RecordComputedAction(kUserAction1);

    EXPECT_EQ(1, user_action_tester.GetActionCount(kUserAction1));
}

} // namespace base
